ipTIME Upgrader is a free Android app developed by iptime that allows you to upgrade your ipTIME router firmware without using a PC. Simply connect your phone to the router's Wi-Fi network while it's connected to the internet, and the app will guide you through the upgrade process.

It's important to note that upgrading via 3G/LTE is not supported, and if you're using a hub or a non-ipTIME router, the app won't be able to detect your router and won't work. However, as long as you're using an ipTIME router and connected to its Wi-Fi network, ipTIME Upgrader makes upgrading your router's firmware a breeze.